When to Move from a Bookkeeper to a Full Accounting Function
The signals that tell you your business has outgrown a solo bookkeeper — and what a proper accounting function looks like at each stage of growth.
Most businesses start with a part-time bookkeeper — and that is perfectly sensible. But as a business grows, bookkeeping alone is no longer enough. You need monthly management accounts, accruals accounting, payroll bookkeeping, and eventually multi-entity or multi-currency accounting. Here are the signals that you have outgrown your current setup.
Six signals you have outgrown a solo bookkeeper
Your accountant is always catching up
If your books are routinely 2+ months behind, your bookkeeper does not have the capacity or structure to close monthly. You are flying blind.
You cannot answer basic financial questions
How much did you make last month? What is your gross margin? What are your biggest expense categories? If these require a call to your accountant and a wait, your accounting is not working.
You are preparing for investment
A VC or PE fund will ask for 3 years of accounts, a current management pack, and unit economics. If you cannot produce these, you are not ready to raise.
You have more than 3 employees
Once payroll, employer NI, pension, and expenses are in the picture, a bookkeeper alone cannot keep up. You need someone who understands accruals accounting and can produce a proper balance sheet.
You operate in more than one country
Multi-currency transactions, VAT on cross-border services, and intercompany transactions require a level of accounting expertise that most bookkeepers do not have.
Your year-end is always painful
If your accountant spends weeks cleaning up your books before they can file your annual accounts, you are paying for reactive catch-up rather than ongoing quality.
What accounting looks like at each stage
| Stage | What you need |
|---|---|
| Pre-revenue | Basic bookkeeping + bank reconciliation. Monthly costs are low; accuracy matters for investor diligence later. |
| £0–250k revenue | Monthly bookkeeping + quarterly management accounts. Keep costs low but build good habits. |
| £250k–1m revenue | Monthly bookkeeping + monthly management accounts + payroll accounting. This is when most businesses need VARISUM. |
| £1m–5m revenue | Full monthly accounting function: bookkeeping, management accounts, cash flow forecasting, and year-end. Plus cross-border if relevant. |
| £5m+ revenue | Consider a part-time or fractional CFO alongside monthly accounting. VARISUM can provide both. |
Not sure where you are?
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